Microsoft Malware Protection Engine

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• High 7.8
  CVE-2026-69414 Public exploit

  Microsoft Defender Elevation of Privilege Vulnerability

  Microsoft is aware of an elevation of privilege in the Microsoft Malware Protection Engine in Microsoft Defender publicly referred to as "ShieldBreak ".

  Microsoft Microsoft Malware Protection Engine
  Aug 14, 2026
• High 7.8
  CVE-2026-50656 Public exploit EPSS 11%

  Microsoft Defender Elevation of Privilege Vulnerability

  Microsoft is aware of an elevation of privilege in the Microsoft Malware Protection Engine in Microsoft Defender publicly referred to as "RoguePlanet ".

  Microsoft Microsoft Malware Protection Engine
  Jun 16, 2026
• High 8.1
  CVE-2026-45584 Public exploit

  Microsoft Defender Remote Code Execution Vulnerability

  Heap-based buffer overflow in Microsoft Defender allows an unauthorized attacker to execute code over a network.

  Microsoft Microsoft Malware Protection Engine
  May 20, 2026
• High 7.8
  CVE-2026-41091 Exploited Public exploit

  Microsoft Defender Elevation of Privilege Vulnerability

  Improper link resolution before file access ('link following') in Microsoft Defender allows an authorized attacker to elevate privileges locally.

  Microsoft Microsoft Malware Protection Engine
  May 20, 2026

  KEV May 20, 2026
• Unscored —
  CVE-2017-8558 Public exploit EPSS 44%

  The Microsoft Malware Protection Engine running on Microsoft Forefront and Microsoft Defender on 32-bit versions of Mic…

  Microsoft Microsoft Malware Protection Engine
  Jun 29, 2017
• Unscored —
  CVE-2017-0290 Public exploit EPSS 81%

  The Microsoft Malware Protection Engine running on Microsoft Forefront and Microsoft Defender on Microsoft Windows Serv…

  Microsoft Microsoft Malware Protection Engine
  May 9, 2017